2193214390445 has 8 divisors (see below), whose sum is σ = 2834307827736. Its totient is φ = 1619604472896.

The previous prime is 2193214390439. The next prime is 2193214390457. The reversal of 2193214390445 is 5440934123912.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62353086436 + 2130861304009 = 249706^2 + 1459747^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2193214390445 - 2⁸ = 2193214390189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2193214390445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16870879862 + ... + 16870879991.

It is an arithmetic number, because the mean of its divisors is an integer number (354288478467).

Almost surely, 2^{2193214390445} is an apocalyptic number.

It is an amenable number.

2193214390445 is a deficient number, since it is larger than the sum of its proper divisors (641093437291).

2193214390445 is a wasteful number, since it uses less digits than its factorization.

2193214390445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33741759871.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 2193214390445 in words is "two trillion, one hundred ninety-three billion, two hundred fourteen million, three hundred ninety thousand, four hundred forty-five".